The SMF◊ system is a hip stem used for primary hip replacement surgery. The hip joint is a ball and socket joint, connecting the femur (thigh bone) with the pelvis. The head of the femur, shaped like a ball, fits tightly into the acetabulum, forming the ball and socket joint of the hip, allowing the leg to move forward and backward, side to side, and rotate right and left. Hip replacement surgery involves adding a femoral implant into the thigh bone and adding an acetabular cup in the pelvis to help restore range of motion in the hip.
Additionally, the SMF stem design allows for a higher neck resection which conserves more of the patient's femur than conventional stems. Saving more bone during a primary hip arthroplasty means a wider range of options for the future.
2. Bone&JointScience Vol 01. No 02. Dec 2010 RSA analysis of early
migration of the uncemented SMF™ vs SYNERGY™ stem: A prospective
randomized controlled trial RW McCalden1, DN Naudie1, A Thompson1,
3. Heiner AD, Brown TD. Frictional coefficients of a new bone ingrowth
structure, Poster no. 1623 presented at Orthopaedic Research Society
Annual Meeting, Feb. 11-14, 2007, San Diego, CA.
4. Kienapfel H, Sprey C, Wilke A, and Griss. Implant fixation by
bone ingrowth, J Arthroplasty, 14(3):355-68, 1999.
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